• Journal for Research in Mathematics Education (1972) Vol. 3, No. 2

    URNAL FOR RESEARCH IN ITHEMITICS EDUCATION MARCH 1972 A Journal of the National Council of Teachers of Mathematics The Journal fo r Research tn Mathematics Education is devoted to the interests of teachers of ma thematics and mathematics education at all leve ls-elementa ry school thro ugh co llege. THE JOUI<NAL FOil R